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Benchmark of available Erlang key-value data structures.
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| %% Copyright (c) 2016, Grzegorz Junka | |
| %% All rights reserved. | |
| %% | |
| %% Redistribution and use in source and binary forms, with or without | |
| %% modification, are permitted provided that the following conditions are met: | |
| %% | |
| %% * Redistributions of source code must retain the above copyright notice, | |
| %% this list of conditions and the following disclaimer. | |
| %% * Redistributions in binary form must reproduce the above copyright notice, | |
| %% this list of conditions and the following disclaimer in the documentation | |
| %% and/or other materials provided with the distribution. | |
| %% | |
| %% THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| %% AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| %% IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| %% ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| %% LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| %% CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| %% SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| %% INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| %% CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| %% ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, | |
| %% EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| -module(erl_data_bench). | |
| -export([start/0]). | |
| -compile(export_all). | |
| start() -> | |
| Max = 20000, | |
| InitSize = 1000, | |
| Accesses = 30000, | |
| Loops = 3, | |
| Types = [ets, pd, dict, gb_trees, map_get, map_find, map_match, list, | |
| orddict], | |
| Init = [{rand:uniform(Max), X} || X <- lists:seq(1, InitSize)], | |
| Write = [{rand:uniform(Max), X} || X <- lists:seq(1, Accesses)], | |
| Read = [ rand:uniform(Max) || _ <- lists:seq(1, Accesses)], | |
| Tests = [make_funs(X) || X <- Types], | |
| start_loop(Tests, Init, lists:zip(Write, Read), Loops, Tests). | |
| make_funs(X) -> {X, j(init, X), j(save, X), j(read, X), j(size, X), j(drop, X)}. | |
| j(X, Y) -> list_to_atom(atom_to_list(X) ++"_"++ atom_to_list(Y)). | |
| start_loop([], _, _, 0, _) -> | |
| done; | |
| start_loop([], Init, Data, X, Tests) -> | |
| start_loop(Tests, Init, Data, X - 1, Tests); | |
| start_loop([Test | T], Init, Data, Loops, Tests) -> | |
| Pid = self(), | |
| spawn(fun() -> do_test(Pid, Test, Init, Data) end), | |
| receive {Sum, Name, Time, Size} -> report(Sum, Name, Time, Size) end, | |
| start_loop(T, Init, Data, Loops, Tests). | |
| do_test(Pid, {Name, InitF, SaveF, ReadF, SizeF, DropF}, Init, Data) -> | |
| {memory, Empty} = process_info(self(), memory), | |
| Id0 = ?MODULE:InitF(), | |
| Id2 = lists:foldl(fun(X, Id1) -> ?MODULE:SaveF(Id1, X) end, Id0, Init), | |
| Foo = fun(Elem, Acc) -> test_one(Elem, Acc, SaveF, ReadF) end, | |
| {Tc, {Id3, Sum}} = timer:tc(fun() -> lists:foldl(Foo, {Id2, 0}, Data) end), | |
| Pid ! {Sum, Name, Tc, ?MODULE:SizeF(Id3, Empty)}, | |
| ?MODULE:DropF(Id3). | |
| test_one({Save, Key}, {Id, Hits}, SaveF, ReadF) -> | |
| NId = ?MODULE:SaveF(Id, Save), | |
| case ?MODULE:ReadF(NId, Key) of | |
| true -> {NId, Hits + 1}; | |
| false -> {NId, Hits} | |
| end. | |
| report(Hits, OName, OTime, Size) -> | |
| Name = atom_to_list(OName), | |
| Time = integer_to_list(OTime), | |
| Pad1 = lists:duplicate(12 - length(Name), $\s), | |
| Pad2 = lists:duplicate(10 - length(Time), $\s), | |
| Msg = "~B Hits: ~s~sTime:~s~s Size:~B~n", | |
| io:format(Msg, [Hits, Name, Pad1, Time, Pad2, Size]). | |
| init_ets() -> ets:new(my_table, []). | |
| save_ets(Tid, T) -> ets:insert(Tid, T), Tid. | |
| read_ets(Tid, K) -> ets:lookup(Tid, K) =/= []. | |
| size_ets(Tid, E) -> process_size(E) | |
| + ets:info(Tid, memory) * erlang:system_info(wordsize). | |
| drop_ets(Tid) -> ets:delete(Tid). | |
| init_pd() -> undefined. | |
| save_pd(_, {K, V}) -> put(K, V), undefined. | |
| read_pd(_, K) -> get(K) =/= undefined. | |
| size_pd(_, E) -> process_size(E). | |
| drop_pd(_) -> ok. | |
| init_dict() -> dict:new(). | |
| save_dict(D, {K, V}) -> dict:store(K, V, D). | |
| read_dict(D, K) -> dict:find(K, D) =/= error. | |
| size_dict(_, E) -> process_size(E). | |
| drop_dict(_) -> ok. | |
| init_gb_trees() -> gb_trees:empty(). | |
| save_gb_trees(G, {K, V}) -> gb_trees:enter(K, V, G). | |
| read_gb_trees(G, K) -> gb_trees:lookup(K, G) =/= none. | |
| size_gb_trees(_, E) -> process_size(E). | |
| drop_gb_trees(_) -> ok. | |
| init_map_get() -> maps:new(). | |
| save_map_get(M, {K, V}) -> maps:put(K, V, M). | |
| read_map_get(M, K) -> maps:get(K, M, undefined) =/= undefined. | |
| size_map_get(_, E) -> process_size(E). | |
| drop_map_get(_) -> ok. | |
| init_map_find() -> maps:new(). | |
| save_map_find(M, {K, V}) -> maps:put(K, V, M). | |
| read_map_find(M, K) -> maps:find(K, M) =/= error. | |
| size_map_find(_, E) -> process_size(E). | |
| drop_map_find(_) -> ok. | |
| init_map_match() -> #{}. | |
| save_map_match(M, {K, V}) -> M#{K => V}. | |
| read_map_match(M, K) -> case M of #{K := _} -> true; _ -> false end. | |
| size_map_match(_, E) -> process_size(E). | |
| drop_map_match(_) -> ok. | |
| init_list() -> []. | |
| save_list(L, {K, _} = T) -> lists:keystore(K, 1, L, T). | |
| read_list(L, K) -> proplists:get_value(K, L) =/= undefined. | |
| size_list(_, E) -> process_size(E). | |
| drop_list(_) -> ok. | |
| init_orddict() -> orddict:new(). | |
| save_orddict(O, {K, V}) -> orddict:store(K, V, O). | |
| read_orddict(O, K) -> orddict:find(K, O) =/= error. | |
| size_orddict(_, E) -> process_size(E). | |
| drop_orddict(_) -> ok. | |
| process_size(Empty) -> element(2, process_info(self(), memory)) - Empty. |
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| -module(erl_data_bench). | |
| -export([start/0]). | |
| -compile(export_all). | |
| start() -> | |
| MaxAccesses = 300000, | |
| Step = 10000, | |
| {ok, Dev} = file:open("erl_data_bench_out.csv", [write, exclusive]), | |
| Pid = spawn(fun() -> collector(Dev) end), | |
| true = register('$write', Pid), | |
| start(Step, MaxAccesses, Step). | |
| collector(Dev) -> | |
| receive | |
| {Pid, stop} -> | |
| file:close(Dev), | |
| Pid ! ok; | |
| {_Count, _Hits, _Name, _Time, _Size} = Msg -> | |
| Args = tuple_to_list(Msg), | |
| file:write(Dev, io_lib:format("~B,~B,~s,~s,~B~n", Args)), | |
| collector(Dev) | |
| end. | |
| start(Max1, Max2, _Step) when Max1 > Max2 -> | |
| '$write' ! {self(), stop}, | |
| receive ok -> ok end; | |
| start(Accesses, MaxAcc, Step) -> | |
| Max = 20000, | |
| InitSize = 1000, | |
| %%Accesses = 30000, | |
| %%Loops = 3, | |
| Loops = 1, | |
| Types = [ets, pd, dict, gb_trees, map_get, map_find, map_match], | |
| Init = [{rand:uniform(Max), X} || X <- lists:seq(1, InitSize)], | |
| Write = [{rand:uniform(Max), X} || X <- lists:seq(1, Accesses)], | |
| Read = [ rand:uniform(Max) || _ <- lists:seq(1, Accesses)], | |
| Tests = [make_funs(X) || X <- Types], | |
| start_loop(Accesses, Tests, Init, lists:zip(Write, Read), Loops, Tests), | |
| start(Accesses + Step, MaxAcc, Step). | |
| make_funs(X) -> {X, j(init, X), j(save, X), j(read, X), j(size, X), j(drop, X)}. | |
| j(X, Y) -> list_to_atom(atom_to_list(X) ++"_"++ atom_to_list(Y)). | |
| start_loop(_Count, [], _, _, 0, _) -> | |
| done; | |
| start_loop(Count, [], Init, Data, X, Tests) -> | |
| start_loop(Count, Tests, Init, Data, X - 1, Tests); | |
| start_loop(Count, [Test | T], Init, Data, Loops, Tests) -> | |
| Pid = self(), | |
| spawn(fun() -> do_test(Pid, Test, Init, Data) end), | |
| receive {Sum, Name, Time, Size} -> report(Count, Sum, Name, Time, Size) end, | |
| start_loop(Count, T, Init, Data, Loops, Tests). | |
| do_test(Pid, {Name, InitF, SaveF, ReadF, SizeF, DropF}, Init, Data) -> | |
| {memory, Empty} = process_info(self(), memory), | |
| Id0 = ?MODULE:InitF(), | |
| Id2 = lists:foldl(fun(X, Id1) -> ?MODULE:SaveF(Id1, X) end, Id0, Init), | |
| Foo = fun(Elem, Acc) -> test_one(Elem, Acc, SaveF, ReadF) end, | |
| {Tc, {Id3, Sum}} = timer:tc(fun() -> lists:foldl(Foo, {Id2, 0}, Data) end), | |
| Pid ! {Sum, Name, Tc, ?MODULE:SizeF(Id3, Empty)}, | |
| ?MODULE:DropF(Id3). | |
| test_one({Save, Key}, {Id, Hits}, SaveF, ReadF) -> | |
| NId = ?MODULE:SaveF(Id, Save), | |
| case ?MODULE:ReadF(NId, Key) of | |
| true -> {NId, Hits + 1}; | |
| false -> {NId, Hits} | |
| end. | |
| report(Count, Hits, OName, OTime, Size) -> | |
| Keys = integer_to_list(Count), | |
| Name = atom_to_list(OName), | |
| Time = integer_to_list(OTime), | |
| Pad0 = lists:duplicate(7 - length(Keys), $\s), | |
| Pad1 = lists:duplicate(12 - length(Name), $\s), | |
| Pad2 = lists:duplicate(10 - length(Time), $\s), | |
| Msg = "~B Keys: ~s~B Hits: ~s~sTime:~s~s Size:~B~n", | |
| io:format(Msg, [Count, Pad0, Hits, Name, Pad1, Time, Pad2, Size]), | |
| '$write' ! {Count, Hits, Name, Time, Size}. | |
| init_ets() -> ets:new(my_table, []). | |
| save_ets(Tid, T) -> ets:insert(Tid, T), Tid. | |
| read_ets(Tid, K) -> ets:lookup(Tid, K) =/= []. | |
| size_ets(Tid, E) -> process_size(E) | |
| + ets:info(Tid, memory) * erlang:system_info(wordsize). | |
| drop_ets(Tid) -> ets:delete(Tid). | |
| init_pd() -> undefined. | |
| save_pd(_, {K, V}) -> put(K, V), undefined. | |
| read_pd(_, K) -> get(K) =/= undefined. | |
| size_pd(_, E) -> process_size(E). | |
| drop_pd(_) -> ok. | |
| init_dict() -> dict:new(). | |
| save_dict(D, {K, V}) -> dict:store(K, V, D). | |
| read_dict(D, K) -> dict:find(K, D) =/= error. | |
| size_dict(_, E) -> process_size(E). | |
| drop_dict(_) -> ok. | |
| init_gb_trees() -> gb_trees:empty(). | |
| save_gb_trees(G, {K, V}) -> gb_trees:enter(K, V, G). | |
| read_gb_trees(G, K) -> gb_trees:lookup(K, G) =/= none. | |
| size_gb_trees(_, E) -> process_size(E). | |
| drop_gb_trees(_) -> ok. | |
| init_map_get() -> maps:new(). | |
| save_map_get(M, {K, V}) -> maps:put(K, V, M). | |
| read_map_get(M, K) -> maps:get(K, M, undefined) =/= undefined. | |
| size_map_get(_, E) -> process_size(E). | |
| drop_map_get(_) -> ok. | |
| init_map_find() -> maps:new(). | |
| save_map_find(M, {K, V}) -> maps:put(K, V, M). | |
| read_map_find(M, K) -> maps:find(K, M) =/= error. | |
| size_map_find(_, E) -> process_size(E). | |
| drop_map_find(_) -> ok. | |
| init_map_match() -> #{}. | |
| save_map_match(M, {K, V}) -> M#{K => V}. | |
| read_map_match(M, K) -> case M of #{K := _} -> true; _ -> false end. | |
| size_map_match(_, E) -> process_size(E). | |
| drop_map_match(_) -> ok. | |
| init_list() -> []. | |
| save_list(L, {K, _} = T) -> lists:keystore(K, 1, L, T). | |
| read_list(L, K) -> proplists:get_value(K, L) =/= undefined. | |
| size_list(_, E) -> process_size(E). | |
| drop_list(_) -> ok. | |
| init_orddict() -> orddict:new(). | |
| save_orddict(O, {K, V}) -> orddict:store(K, V, O). | |
| read_orddict(O, K) -> orddict:find(K, O) =/= error. | |
| size_orddict(_, E) -> process_size(E). | |
| drop_orddict(_) -> ok. | |
| process_size(Empty) -> element(2, process_info(self(), memory)) - Empty. |
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| 25> erl_data_bench:start(). | |
| 15335 Hits: ets Time:22068 Size:903056 | |
| 15335 Hits: pd Time:12296 Size:2709360 | |
| 15335 Hits: dict Time:67726 Size:2174112 | |
| 15335 Hits: gb_trees Time:77140 Size:2174112 | |
| 15335 Hits: map_get Time:22862 Size:5091000 | |
| 15335 Hits: map_find Time:23983 Size:5091000 | |
| 15335 Hits: map_match Time:20434 Size:5091000 | |
| 15335 Hits: list Time:19606771 Size:371376 | |
| 15335 Hits: orddict Time:8952194 Size:371376 | |
| 15335 Hits: ets Time:23132 Size:903056 | |
| 15335 Hits: pd Time:12429 Size:2709360 | |
| 15335 Hits: dict Time:68358 Size:2174112 | |
| 15335 Hits: gb_trees Time:76733 Size:2174112 | |
| 15335 Hits: map_get Time:22836 Size:5091000 | |
| 15335 Hits: map_find Time:24309 Size:5091000 | |
| 15335 Hits: map_match Time:20607 Size:5091000 | |
| 15335 Hits: list Time:19578168 Size:371376 | |
| 15335 Hits: orddict Time:8924476 Size:371376 | |
| 15335 Hits: ets Time:23600 Size:903056 | |
| 15335 Hits: pd Time:12503 Size:2709360 | |
| 15335 Hits: dict Time:68209 Size:2174112 | |
| 15335 Hits: gb_trees Time:76740 Size:2174112 | |
| 15335 Hits: map_get Time:22927 Size:5091000 | |
| 15335 Hits: map_find Time:24028 Size:5091000 | |
| 15335 Hits: map_match Time:20395 Size:5091000 | |
| 15335 Hits: list Time:19568900 Size:371376 | |
| 15335 Hits: orddict Time:8931639 Size:371376 | |
| 15335 Hits: ets Time:23464 Size:903056 | |
| 15335 Hits: pd Time:12590 Size:2709360 | |
| 15335 Hits: dict Time:68061 Size:2174112 | |
| 15335 Hits: gb_trees Time:76412 Size:2174112 | |
| 15335 Hits: map_get Time:22952 Size:5091000 | |
| 15335 Hits: map_find Time:24001 Size:5091000 | |
| 15335 Hits: map_match Time:20325 Size:5091000 | |
| 15335 Hits: list Time:19565375 Size:371376 | |
| 15335 Hits: orddict Time:8924095 Size:371376 | |
| done |
Nice, but I think you should force garbage collection after each type tested. Or use separate new processes for each type to ensure same starting conditions in terms of memory.
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Great test!!